Heart & Lung Anatomy & Physiology Question Preview (ID: 497)

Function & Structure Of Heart & Lung. TEACHERS: click here for quick copy question ID numbers.

What structures prevent the blood from flowing in the wrong direction in the heart?
a) Valves
b) Vena cava
c) Capillaries
d) Arteries

What process is responsible for moving gases into & out of the capillaries?
a) Diffusion
b) Osmosis
c) Mitosis
d) Photosynthesis

In the lungs, where does gas exchange occur?
a) Capillaries around the alveoli
b) Around the vena cava
c) Arteries nearest the aorta
d) Veins in the systemic circuit

What kind of blood is found in the veins of the systemic circuit?
a) deoxygenated
b) oxygenated
c) capillaries
d) diffusion

What is the sheet of muscle that controls the size & activity of the lungs?
a) diaphragm
b) peristalsis
c) alveoli
d) superior vena cava

What would happen to an individual if their red blood cells were not functioning properly?
a) The exchange of oxygen & carbon dioxide would be less efficient
b) The trachea would work harder
c) The exchange of oxygen & carbon dioxide would remain the same
d) Carbon monoxide would increase in the lungs

What is the function of the cells lining the trachea?
a) Help filter the incoming air
b) Add deoxygenated blood to incoming air
c) Increase surface area for gas exchange
d) Increase blood flow to the aorta

The plasma portion of blood contains:
a) All the answers are correct
b) Salts
c) Ions
d) Nutrients from the digestive system

What is the function of white blood cells
a) Search & destroy any foreign cells in the body
b) Increase oxygen content in the blood
c) Remove oxygen from the veins
d) Increase surface area in the alveoli

Where is oxygenated blood found?
a) Left side of the heart & almost all of the arteries in the body
b) Right side of the heart & almost all of the veins in the body
c) Right ventricle & left atrium & most of the arteries in the body
d) Left ventricle & right atrium & most of the veins in the body

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